APA (7th ed.) Citation

Doyle, A. C. (1996). The case-book of Sherlock Holmes. Leopard.

Chicago Style (17th ed.) Citation

Doyle, Arthur Conan. The Case-book of Sherlock Holmes. Great Britain: Leopard, 1996.

MLA (9th ed.) Citation

Doyle, Arthur Conan. The Case-book of Sherlock Holmes. Leopard, 1996.